SHANDONG SCIENCE ›› 2015, Vol. 28 ›› Issue (4): 83-88.doi: 10.3976/j.issn.1002-4026.2015.04.016

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FDTD research of broadband backward electromagnetic scattering from exponential distribution rough land surface

WU Jian, REN Xincheng, ZHU Xiaomin   

  1. School of Physics and Electronics Information, Yan' an University, Yan' an 716000, China
  • Received:2014-11-22 Online:2015-08-20 Published:2015-08-20

Abstract: We simulate exponential distribution rough land surface with Monte Carlo method.We also address wideband electromagnetic scattering of rough land surface corresponding to Gaussian pulse incident wave by finitedifference timedomain (FDTD) method.Backward scattering coefficients of different frequency response are obtained through numerical calculation.We further analyze the influences of correlation length, rootmeansquare of height fluctuation, soil moisture and incident angle variations on backward scattering coefficient.We eventually acquire wideband backward electromagnetic scattering characteristics of exponential distribution rough land surface.

Key words: electromagnetic scattering, FDTD, backward scattering coefficient, Gaussian pulse wave, rough land surface

CLC Number: 

  • TN011